He entered the year having never made a hole-in-one as a pro and now has two already this season with one at Pebble Beach. I just didn't really play well.
But Woods couldn't continue his strong play, shooting three bogeys to just one birdie and ultimately closing his day at even par.
DeChambeau, ranked 38th in the world, kick-started his push to the top of the board with birdies at the fifth and seventh holes.
His skills were on display again on Friday, during the second round of the Memorial Tournament.
"It was a 7-footer, 2 1/2 percent slope, and I just said, all right, I've done this plenty of times".
The eagle brought Woods to five-under on the tournament, just five strokes off the lead, just as play was suspended due to weather concerns.
Throw in a ball out of bounds on the par-4 13th, and Woods followed up a solid 34 on the front nine with an ugly 38 on the back when he needed something closer to 30 to have a shot at his sixth win at this event. He wound up with a one-shot lead over Kyle Stanley, who bogeyed the 18th hole from the bunker for a 70; Cantlay, who drove into the creek left of the 18th fairway for a bogey and a 66; and Niemann, who atoned for one big mistake on the 15th hole with a birdie on the 18th for a 70. Woods ran his 45-foot birdie putt about 7 feet by on the par-3 16th and missed it coming back, and then closed by missing a 3-foot par putt.
Bryson DeChambeau shot a six-under-par 66 to take a one-stroke lead at the Memorial Tournament in OH on Saturday, while Tiger Woods made a charge with a blistering front nine before fading coming home.
But DeChambeau's effort missed on the low side, setting up a three-man playoff that sent the three players back to the 18th tee.
"I think I just (stunk) on it for a long time", Day said.
"A little bit of momentum", Mickelson said, when asked what he took from his week at Muirfield Village.
Woods, playing nearly flawlessly from tee to green, teased the entire tournament when he tied for the lead at 11-under with a birdie on No. 15. "After that first round I kind of got better and moved up the leaderboard each day". McIlroy missed three birdie chances inside 8 feet.
That left DeChambeau with an eight-foot putt for par and the title but it drifted left and he signed for a one-under 71.
Rose has a chance to reach No. 1 in the world with a runner-up finish, depending on what Justin Thomas does Sunday. That was enough for him to earn special temporary membership on the PGA Tour, meaning he can get unlimited sponsor exemptions.